Sash-locking device.



| gNV/Efi'TOH Y v Ar'romer UNITED STATES PATENT OFFICE.

EDMUND M. EBB, 0F JERSEY CITY, NEW JERSEY, ASSIG-NOR T0 ROBERT M. DIXON,OF EAST ORANGE, NEW JERSEY.

SASH-LOGKING- DEVICE.

To all whom it may concern:

Be it known that I, EDMUND M. EBB, residing at Jersey City, in thecounty of Hudson and State of New Jersey, have invented certain new anduseful Improvements in Sash-Locking Devices, of which the following is afull, clear, and exact description, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to windows, and more particularly to the windowof railway cars or like structures.

One of the objects of the invention is to provide means which willinsure against injury to the fingers of passengers or other personsengaged in raising or lowering the sliding sashes of railway cars.

Another object of the invention is to provide a simple and efficientlock for the outer sash of a double-sashed window which will prevent theopening of said sash until the inner one has been fully raised or raisedto a predetermined open position.

More specifically, my invention contemplates the employment, in a windowprovided with double sliding sashes, of means which will automaticallylock the outer sash when the inner one is closed, but which willautomatically release the same from locked condition when the inner sashhas been completely opened.

Other objects will be in part obvious and in part pointed outhereinafter.

The invention accordingly consists in the features of construction,combinations of elements and arrangement of parts which will beexemplified in the construction hereinafter set. forth, and the scope ofthe application of which will be indicated in the following claims.

In the accompanying drawing, wherein is illustrated one of the severalpossible embodiments of my invention, Figure 1 is a view in frontelevation of a portion of a railway car showing a sliding sash mountedin the window frame; Fig. 2 is a vertical sectional view takensubstantially on line 2-2 of Fig. 1 looking in the direction of thearrows, the sashes being shown in closed position; Fig. 3 is atransverse sectional view taken on line 33 of Fig. 2; and Fig. 4 is aview in elevation showing the portion of the frame upon which thelocking device is mounted.

Specification of Letters Patent.

Application filed January 10, 1907.

Patented May '7, 1912.

Serial No. 351,652.

Similar reference characters refer to like parts throughout the severalfigures of the drawing.

Referring now to the drawing, 1 indicates a portion of a side wall of arailway car within which is formed a frame 2. Frame 2 is provided withsuitable guiding stops between which slide outer and inner sashesindicated at 3 and 4 respectively, said sashes being provided in theirupper portions in the present instance with spring drums shown at 5 and6, from which suspending devices 7 and 8 respectively extend, saidsuspending devices, herein shown as cords, being suitably attached to afixed support provided at the upper portion of the frame. It will beunderstood that as usual in such constructions the sashes are'overbalanced, so that they will rise automatically when released fromlocked condition.

.At this point it may be noted that in structures wherein double sashesare employed, as for instance in railway cars, injuries are oftensustained by the passengers when manipulating sashes, due to theirfingers being caught or pinched between the sash lock manipulatingdevices of the outer sash and the bottom rail of the inner sash. Suchaccidents usually occur by reason of the fact that the inner sash is notraised a sufficient distance to enable the outer sash to be raised tothe full extent of its sliding movement. I have therefore found itdesirable to provide means whereby the raising of the outer sash will bedependent upon the raising of the inner sash to a full open position,thereby obviating all chance of the occurrence of such injuries. Inorder to attain this end a swinging locking member 9 is swiveled upon astud screw 10 upon the parting strip 11 which separates the inner andouter sashes opposite the upper portion of the sash frames, which in thepresent instance are shown as constructed of hollow metal, the partingstrip being similarly constructed. Locking member 9 at its lower end isprovided with a portion 12 adapted to enter an opening or recess 13provided in the side rail of the outer sash, and directly opposite thislocking portion, member 9 is provided with a curved or cam surface 14.The lower end of looking member is of such width that when the innersash is in a closed position, as shown in Fig. 2 of the drawings, thelocking portion 12 will be forced into locking engagement with the wallsof the opening 13 of the outer sash and the sash will be thus securelylocked against raising. A spring 15 is arranggged to retract lockingmember 9, such spring in the present instance being shown located withinthe parting strip and encircling the stud 10 which carries the lockingmember. One end of this spring takes against the inner wall of theparting strip and the other end is secured in any suitable manner to thelocking member. An opening 16 similar to that shown at 13 is provided inthe lower portion of the outer sash, the purpose of which will presentlybe apparent.

Upon the lower portion of each of the sashes are provided devices 17 forreleasing the sashes from locked condition. These locking devices, whichmay be of any desired type, are not shown herein. It will be understood,however, that each of the sashes is locked to the side stiles of theframe by means adapted to be released through a manipulation of thelocking de vices 17 provided upon the lower portion of the sash.

Having thus described the structural. features constituting myinvention, the operation thereof, which will be to a large extentobvious, is substantially as follows: Supposing both sashes to be in aclosed position and resting upon sill 19, as shown in the full lines ofFig. 2, locking member 9 is, by its engagement with the side stile ofsash 4t, forced into locking. engagement with recess 13 of sash 8. Uponraising the inner sash to the position shown in dotted lines in Fig. 4t,spring 15 will retract locking member 9 from sash 3, whereupon the samemay be raised to open position, the curved or cam portion 1 1 of thelocking member being received in the space beneath the lower end of thebottom rail of sash ti:- Or, if de sired, a suitable recess or notch maybe cut in the inner sash for the accommodation of this cam portion. Suchlatter structure might be employed in constructions wherein the sashesare not permitted sliding movements equal to their height. In closingthe sashes, the outer sash may first be lowered and the locking memberwill again enter opening 13, when the inner sash is likewise forced to aclosed position. If, however, for any reason it is desired to close theinner sash, leaving the outer sash in an open position, this operationmay be effected by reason of the provision of opening 16 in the outersash, which will. receive the locking projection when the inner sash islowered. This will also lock the outer sash positively in an openposition. It will accordingly be seen that I have provided mechanismwell adapted to accomplish,

among others, the ends and objects above pointed out, the employment ofwhich will eliminate all chance of injury to the passengers whenmanipulating the sliding sashes of railway cars. While I preferablyemploy my invention in connection with railway cars and have shown thesame in such relation, it is obvious that the same may be applied withequal facility to the windows of other structures.

Certain features relating to the specific construction of the sashframes disclosed in the drawings are not claimed herein, but are shown,described and claimed in my prior patents Nos. 871,217 and 871,218,dated November 19, 1907.

As many changes could be made in the above construction and manyapparently widely different embodiments of this invention could be madewithout departing from the scope thereof, it is intended that all mattercontained in the above description or shown in the accompanying drawingsshall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the language used in the followingclaims is intended to cover all of the generic and specitic features ofthe invention herein described and all statements of the scope of theinvention which, as a matter of la11- guage, might be said to falltherebetween.

Having described my invention, what I claim as new and desire to secureby Letters Patent is:

1. In window construction, in combination, a frame, a pair ofregistering sashes located therein and adapted to slide in the frame,and a spring-retracted locking member movably mounted upon the frameintermediate said sashes, said locking member being adapted to be heldin posit-ion to lock one of said sashes by an engagement with the otherthereof and to be released automatically when said last mentioned sashis opened a predetermined extent.

2. In window construction, in combination, a frame, a pair ofregistering sashes mounted to slide therein, a locking member mounted toswing upon the frame intermediate said sashes, one of said sashes beingadapted to engage said member and force the same into positive lockingengagement with the other thereof, and a spring adapted to swing saidmember out of engagement with the locked sash when the other sash israised.

3. In window construction, in combination, a frame, a pair of slidingsashes mounted in registry therein, a swinging locking member swiveledupon the frame intermediate said sashes adapted to be engaged by theinner sash and to be forced into an opening provided in the outer sash,and a spring for retracting said device from said opening when the innersash is raised to an open position, said outer sash being provided Withanother opening to accom; modate said locking member when the inner sashis closed and the outer one left open.

4. In window construction, in combination, a frame, a pair ofregistering sashes slidably mounted therein, a pivotally mounted lockingmember provided with a portion adapted to enter an opening provided inthe outer sash and thereby lock the same in closed position and having acam port-ion adapted to be engaged by the inner sash, such engagementefiecting a locking of the outer sash, and means for re tracting saidlocking member.

5. In Window construction, in combination, a car window comprising apair of normally registering sashes, a frame in which said sashes areslidably mounted, said sashes being formed to close said window innormal registering position, and a positive locking device adapted tolock the outer sash to the frame in its normal lowered position, saiddevice being provided with a portion adapted to be operated by the innersash to force it into locking position as said inner sash is lowered andrelease the device as the inner sash is raised.

In testimony whereof I affix my signature, in the presence of twowitnesses.

EDMUND M. ERB.

Witnesses: I

R. F. MARTIN, H. M. SEAMANs.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

